<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>登录验证-非常重要</title>
		<!-- jQuery文件。务必在bootstrap.min.js 之前引入 -->
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script>
	function checkUname(){
		username=$("#uname").val();
		//验证规则(正则表达式)
		reg = /^[a-zA-Z0-9]{3,10}$/;
		if(!reg.test(username)){
			$("#uname").css("border-color","red");
		}else{
			$("#uname").css("border-color","");
		}
		 psw = $("#upsw").val()
		 reg = /^[0-9]{6}$/;
		 if (!reg.test(psw)) {
		 	$("#upsw").css("border-color","red");	
		 	return false;
		 }else{
		 	$("#upsw").css("border-color","");
		 	return true;
		 }
	}
	function checkAll(){
		checkUname();
		checkUpsw();
	}
</script>
	</head>
	<body>
		<h3>用户名是字母数字的组合，3-10个；密码6个数字</h3>
		用户名<input onblur="checkUname()" type="text" id="uname">
		密码<input onblur="chcekUpsw()" type="password" id="upsw">
		<button onclick="checkAll()">登录</button>
		
	</body>
</html>
